CN115110599A - Automatic soil discharging construction process for deep foundation pit - Google Patents
Automatic soil discharging construction process for deep foundation pit Download PDFInfo
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- CN115110599A CN115110599A CN202211023953.0A CN202211023953A CN115110599A CN 115110599 A CN115110599 A CN 115110599A CN 202211023953 A CN202211023953 A CN 202211023953A CN 115110599 A CN115110599 A CN 115110599A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F7/00—Equipment for conveying or separating excavated material
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/10—Temperature; Pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/12—Velocity of flow; Quantity of flow, e.g. by varying fan speed, by modifying cross flow area
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention relates to a deep foundation pit automatic dumping construction process, which relates to the technical field of foundation pit dumping, and comprises the following steps of S1, determining the dumping position of a deep foundation pit, and installing and fixing an automatic dumping system; step S2, arranging a soil feeding inlet, a conveyor belt and a soil discharging box, and arranging a high-temperature fan and a humidity detection device; step S3, a central control module is arranged to judge the real-time humidity during the dumping, and the air supply temperature and the air supply speed of the high-temperature fan are adjusted according to the judgment result; and step S4, continuously judging the real-time humidity through the central control module, adjusting the driving rotating speed of the driving motor according to the judgment result, and controlling the start and stop of the driving motor. According to the invention, the automatic soil discharging system is arranged when the foundation pit discharges soil, the lifting rotary rod rotates to drive the muck to lift, so that the continuous soil discharging of the deep foundation pit is realized, the real-time humidity during soil discharging is judged, and the humidity of the muck is adjusted by the high-temperature fan, so that the soil discharging efficiency of the foundation pit is improved.
Description
Technical Field
The invention relates to the technical field of foundation pit soil discharging, in particular to an automatic soil discharging construction process for a deep foundation pit.
Background
The deep foundation pit is an engineering with the excavation depth of more than 5 meters or the excavation depth of not more than 5 meters, but the geological conditions, the surrounding environment and underground pipelines are very complicated, along with the improvement of the building level and the building requirements, the deep foundation pit becomes a common engineering project, but in the excavation process of the foundation pit, a plurality of soil discharging modes are determined according to the soil excavation amount and the area of the foundation pit, when the area of the foundation pit is larger, an engineering vehicle is adopted to enter the interior of the foundation pit for carrying out the residue soil transportation, when the area of the foundation pit is smaller, the conveyer belt is adopted to carry out the residue soil transportation, the conveyer belt is suitable for the foundation pit soil discharging in a multistage slope placing mode, and when the broken surface of the foundation pit is steeper or upright, only a specific foundation pit soil discharging device can be adopted for carrying out the soil discharging operation.
Chinese patent publication no: CN 108824433B. An ultra-deep foundation pit dumping device is disclosed; its technical scheme snatchs the interior dregs of a pit through the grab bucket, and the rethread promotes carries out the soil discharging, and is thus visible, when the deep basal pit soil discharging among the prior art, can only adopt the mode of snatching the promotion, can't carry out continuous soil discharging, leads to deep basal pit soil discharging efficiency lower, is unfavorable for deep basal pit in time to maintain the operation.
Disclosure of Invention
Therefore, the invention provides an automatic soil discharging construction process for a deep foundation pit, which is used for solving the problem of low soil discharging efficiency caused by difficulty in continuous soil discharging of a steep-wall deep foundation pit in the prior art.
In order to achieve the above object, the present invention provides an automatic soil discharge construction process for a deep foundation pit, comprising,
step S1, determining the dumping position of the deep foundation pit, installing an automatic dumping system at the side wall of the dumping position of the deep foundation pit, fixing a dumping pipe group in the automatic dumping system on a supporting structure at the side wall of the dumping position of the deep foundation pit through an expansion nail, arranging a driving motor at the upper end of the dumping pipe group, connecting the driving motor with a lifting rotary rod arranged in the dumping pipe group, and driving the lifting rotary rod to rotate through the driving motor;
step S2, arranging a soil discharging box at the lower end of the soil discharging pipe group, connecting the lifting rotary rod with the bottom of the soil discharging box, arranging a conveyor belt at an opening at the upper part of the soil discharging box, arranging a soil feeding inlet at the upper part of the conveyor belt, arranging a crusher in the soil feeding inlet, arranging a high-temperature fan at one side of the conveyor belt close to the soil feeding inlet, and arranging a humidity detection device at the other side of the conveyor belt;
step S3, a central control module arranged in the automatic dumping system is used for judging the real-time humidity of the surface of the conveyor belt detected by the humidity detection device, the central control module compares the real-time humidity with a standard humidity range arranged in the central control module and adjusts the initial air supply temperature of the high-temperature fan, when the real-time humidity is lower than the standard humidity range, the central control module compares the real-time humidity with the minimum dehumidification humidity arranged in the central control module to determine whether to turn off the high-temperature fan, and when the central control module judges that the high-temperature fan is not turned off, the central control module adjusts the air supply speed of the high-temperature fan according to the real-time humidity and the minimum dehumidification humidity;
step S4, when the central control module judges that the real-time humidity on the surface of the conveyor belt is higher than the standard humidity, the central control module compares the real-time humidity with the maximum lifting humidity set inside the conveyor belt, when the real-time humidity does not exceed the maximum lifting humidity, the central control module adjusts the initial driving rotating speed of the driving motor according to the real-time humidity on the surface of the conveyor belt and the standard humidity in the standard humidity range, when the real-time humidity exceeds the maximum lifting humidity, the central control module controls the driving motor to stop driving, and dehumidifies the residue soil in the automatic soil discharging system through the high-temperature fan, and when the real-time humidity detected by the humidity detection device is smaller than or equal to the maximum lifting humidity, the central control module controls the driving motor to start driving to lift the residue soil.
Furthermore, a standard humidity Hb and a standard humidity difference delta Hb are arranged in the central control module, the conveyor belt conveys the muck crushed by the crusher into the soil discharging box, the humidity detection device detects the real-time humidity Hs at the surface of the muck part conveyed by the conveyor belt, the central control module calculates the real-time humidity difference delta Hs according to the real-time humidity Hs and the standard humidity Hb, the delta Hs = | Hb-Hs |, and the central control module compares the real-time humidity difference delta Hs with the standard humidity difference delta Hb,
when the delta Hs is less than or equal to the delta Hb, the central control module judges that the real-time humidity difference on the surface of the conveyor belt does not exceed the standard humidity difference, and the central control module does not adjust the air supply temperature of the high-temperature fan;
when delta Hs is larger than delta Hb, the central control module judges that the real-time humidity difference on the surface of the conveyor belt exceeds the standard humidity difference, the central control module compares the real-time humidity with the standard humidity, and the air supply temperature of the high-temperature fan is adjusted according to the comparison result.
Further, the central control module is internally provided with the initial air supply temperature Tc of the high-temperature fan, when the central control module judges that the real-time humidity difference on the surface of the conveyor belt exceeds the standard humidity difference, the central control module compares the real-time humidity Hs with the standard humidity Hb,
when Hs is less than Hb, the central control module judges that the real-time humidity at the surface of the conveyor belt is lower than the standard humidity, and the central control module adjusts the air supply temperature of the high-temperature fan to be Tc ', Tc' = Tc-Tc x [ (Hb-Hs)/Hb ];
when Hs is larger than Hb, the central control module judges that the real-time humidity at the surface of the conveyor belt is higher than the standard humidity, and the central control module adjusts the air supply temperature of the high-temperature fan to Tc ', Tc' = Tc + Tc x [ (Hs-Hb)/Hs ].
Further, the central control module is internally provided with the lowest dehumidification humidity Hz, wherein Hz is less than Hb, when the central control module judges that the real-time humidity at the surface of the conveyor belt is lower than the standard humidity, the central control module compares the real-time humidity Hs at the surface of the conveyor belt with the lowest dehumidification humidity Hz,
when Hs is less than or equal to Hz, the central control module judges that the real-time humidity at the surface of the conveyor belt reaches the lowest dehumidification humidity, and the central control module controls the high-temperature fan to be closed to stop dehumidifying the residue soil on the conveyor belt;
when Hs > Hz, the central control module judges that the real-time humidity on the surface of the conveying belt does not reach the lowest dehumidification humidity, the central control module does not close the high-temperature fan, and the central control module adjusts the air supply speed of the high-temperature fan according to the real-time humidity Hs and the lowest dehumidification humidity Hz on the surface of the conveying belt.
Further, an initial air supply speed Vc of the high-temperature fan is arranged in the central control module, and when the central control module judges that the real-time humidity on the surface of the conveyor belt does not reach the minimum dehumidification humidity and adjusts the air supply temperature of the high-temperature fan to Tc ', the central control module adjusts the air supply speed of the high-temperature fan to Vc' = Vc x [ (Hs-Hz)/Hs ].
Furthermore, the central control module is internally provided with the maximum air supply temperature Ta of the high-temperature fan, when the central control module judges that the real-time humidity on the surface of the conveyor belt is higher than the standard humidity, the central control module adjusts the air supply temperature of the high-temperature fan to Tc ', the central control module compares the air supply temperature Tc' with the maximum air supply temperature Ta,
when Tc' is less than or equal to Ta, the central control module judges that the adjusted air supply temperature of the high-temperature fan does not exceed the maximum air supply temperature, and the central control module does not adjust the high-temperature fan;
when Tc 'is more than Ta, the central control module judges that the adjusted air supply temperature of the high-temperature fan exceeds the maximum air supply temperature, the central control module adjusts the air supply temperature of the high-temperature fan to Tc', Tc '= Ta, the central control module adjusts the air supply speed of the high-temperature fan to Vc', Vc '= Vc + Vc x [ (Tc' -Ta)/Ta ], and the central control module finishes the adjustment of the high-temperature fan.
Furthermore, the maximum lifting humidity Ha is arranged in the central control module, the initial driving rotating speed We of the driving motor is also arranged in the central control module, when the central control module judges that the real-time humidity on the surface of the conveyor belt is higher than the standard humidity, the central control module compares the real-time humidity Hs with the maximum lifting humidity Ha,
when Hs is not more than Ha, the central control module judges that the real-time humidity on the surface of the conveyor belt does not exceed the maximum lifting humidity, and the central control module adjusts the driving rotating speed of the driving motor to We ', We' = We x (Hb/Hs);
when Hs > Ha, the central control module judges that the real-time humidity of conveyer belt surface department is higher than the biggest promotion humidity, and the central control module will control driving motor stops the drive, by the high temperature fan dehumidifies the dregs in the automatic dumping system, until when the real-time humidity Hs 'that humidity detection device detected reached Hs' is less than or equal to Ha, the central control module control driving motor starts the drive.
Further, in the step S1, the waste pipe assembly includes an upper waste pipe, a lower waste pipe and a plurality of connecting waste pipes, the connecting waste pipes can be connected to each other, the lifting screw is formed by connecting a plurality of connectable lifting screws, and the number of the connecting waste pipes is determined according to the height of the sidewall of the deep foundation pit when the waste pipe assembly is fixed.
Further, a closed box is further arranged in the step S2, the upper part of the closed box is connected with the soil feeding inlet, the lower part of the closed box is connected with the soil discharging box, and the conveyor belt, the high-temperature fan and the humidity detection device are all arranged in the closed box.
Further, in the step S1, if the side wall of the deep foundation pit is not provided with the supporting structure, the waste pipe set is fixed only by the threaded anchor rod without using the expansion nail.
Compared with the prior art, the invention has the advantages that the automatic soil discharging system is arranged when the foundation pit discharges soil, the lifting rotary rod with continuous blades is arranged in the automatic soil discharging system to rotate to drive the muck to lift, the continuous soil discharging of the deep foundation pit is realized, the central control module is arranged in the automatic soil discharging system, the real-time humidity during the soil discharging is judged through the central control module, high-temperature air supply is carried out in the automatic soil discharging system through the high-temperature fan to dehumidify the muck, the driving rotating speed of the driving motor is adjusted when the real-time humidity is higher, the muck blockage of a soil discharging pipe group caused by the excessive caking property of the muck and the burning loss of the motor are avoided, and the automatic soil discharging system is arranged in the soil discharging process of the deep foundation pit, and the real-time humidity is judged, so that the soil discharging efficiency of the deep foundation pit is improved while the continuous soil discharging operation is realized.
Especially, through setting up standard humidity and standard humidity difference in the central control module, constitute the standard temperature range, and detect the real-time humidity of the surface department of the dregs of just exporting of conveyer belt through humidity detection device, because set up humidity detection device in the conveyer belt department of the far side with high temperature fan, therefore the humidity detection influence here is lower, calculate real-time humidity difference through the central control module simultaneously, compare real-time humidity difference and standard humidity difference, whether the real-time humidity that detects is in the standard temperature range, and adjust the air supply temperature of high temperature fan according to the judged result, through the inside dregs of dregs humidity of accurate control automatic soil discharging system, improve the soil discharging efficiency of deep basal pit.
Especially, when the central control module judges that the real-time humidity difference exceeds the standard humidity difference, the central control module compares the real-time humidity with the standard humidity, so as to determine the specific soil discharging humidity state, and according to the comparison result of the real-time humidity and the standard humidity, the air supply temperature of the high-temperature fan is adjusted, when the real-time humidity is lower, the air supply temperature of the high-temperature fan is reduced, raised dust caused by over-drying of the residue soil is avoided, the soil discharging environment is influenced, when the real-time humidity is higher, the air supply temperature of the high-temperature fan is increased, the residue soil is quickly dehumidified, the residue soil is prevented from being adhered to the inner wall of the soil discharging pipe group, and the soil discharging efficiency of the foundation pit is further ensured.
Further, through setting up minimum dehumidification humidity in well accuse module, compare real-time humidity and minimum dehumidification humidity to confirm to opening of high temperature fan and stop control, when the real-time humidity of conveyer belt surface department has reached minimum dehumidification humidity, the real-time humidity that represents the dregs is lower, stops the air supply through well accuse module control high temperature fan, avoids appearing the dregs raise dust, influences the operation environment around the soil discharging system.
Particularly, when the real-time humidity on the surface of the conveying belt is low but the standard of closing the high-temperature fan is not reached, the air supply speed of the high-temperature fan is correspondingly adjusted according to the real-time humidity, and when the real-time humidity is relatively high, the air supply speed of the high-temperature fan is adaptively increased, so that the muck in the automatic dumping system is quickly dried, the dumping efficiency of the muck is improved, and when the real-time humidity is relatively low, the air supply speed of the high-temperature fan is reduced, the dust flying of the muck is avoided, and the stability of the dumping operation environment is guaranteed.
Furthermore, the condition that the residual soil humidity is too high is controlled by setting the maximum air supply temperature of the high-temperature fan in the central control module, when the set air supply temperature of the high-temperature fan exceeds the maximum air supply temperature, the air supply temperature of the high-temperature fan is adjusted to be the maximum air supply temperature, the air supply temperature is supplemented by increasing the air supply speed of the high-temperature fan, the residual soil express delivery drying is guaranteed, and the residual soil discharge efficiency is improved.
Further, through setting up the biggest promotion humidity in well accuse module, utilize well accuse module to judge real-time humidity according to the biggest promotion humidity, adjust with the driving speed to driving motor, when real-time humidity is great relatively, reduce driving motor's driving speed, avoid crossing during glutinous dregs concentrate and get into the pipe bank of arranging soil, block up the pipe bank of arranging soil, lead to unable normal clear operation of arranging soil, when real-time humidity is higher than the biggest promotion humidity, control driving motor stops to drive, avoid driving motor scaling loss, guarantee automatic dumping system's security.
Especially, through setting up the pipe group of dumping to seal the section structure, the foundation ditch operation of adaptation different degree of depth that can be nimble, through adopting the connection of each connection dumping pipe, can enough maintain the lifting efficiency of connecting the promotion bull stick to the dregs, can ensure automatic dumping system's suitability again, guarantee the dumping operation of deep foundation ditch pipe overall process excavation.
Furthermore, the conveyor belt and the high-temperature fan are loaded through the closed box, dust generated by dehumidifying of the residue soil is further reduced, the pulverizer is arranged in the soil feeding inlet in the step S2, the large volume in the crushed residue soil is fixed, the fixed blockage of the soil discharging pipe group is avoided, and the normal operation of soil discharging operation is guaranteed.
Especially, the pipe bank of arranging soil is fixed on the supporting construction of the lateral wall of deep basal pit soil discharging position through the inflation nail, because the pipe bank of arranging soil shakes greatly in the soil discharging process, if directly with the pipe bank of arranging soil fix can have the lateral wall risk of collapsing on the lateral wall of the no support department of deep basal pit, consequently utilize the stock to fix, can enough reach the purpose of fixed pipe bank of arranging soil, can stabilize deep basal pit lateral wall atress again, if fix the pipe bank of arranging soil on supporting construction, ensured automatic soil discharging system's holistic stability.
Drawings
Fig. 1 is a flow chart of the construction process for automatically removing the soil in the deep foundation pit according to the embodiment;
fig. 2 is a schematic structural diagram of the automatic soil discharging system according to the embodiment.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described below with reference to examples; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1 and 2, fig. 2 includes a soil discharging pipe group 1, expansion nails 2, a driving motor 3, a lifting rotary rod 4, a soil discharging box 5, a conveyor belt 6, a soil feeding inlet 7, a pulverizer 8, a high temperature fan 9, a humidity detection device 10, an upper soil discharging pipe 101, a connecting soil discharging pipe 102, a lower soil discharging pipe 103, and a connectable lifting rotary rod 1022; the embodiment discloses an automatic soil discharging construction process for a deep foundation pit, which comprises the following steps of,
step S1, determining the dumping position of the deep foundation pit, installing an automatic dumping system at the side wall of the dumping position of the deep foundation pit, fixing a dumping pipe group in the automatic dumping system on a supporting structure at the side wall of the dumping position of the deep foundation pit through an expansion nail, arranging a driving motor at the upper end of the dumping pipe group, connecting the driving motor with a lifting rotary rod arranged in the dumping pipe group, and driving the lifting rotary rod to rotate through the driving motor;
step S2, arranging a soil discharging box at the lower end of the soil discharging pipe group, connecting the lifting rotary rod with the bottom of the soil discharging box, arranging a conveyor belt at an opening at the upper part of the soil discharging box, arranging a soil feeding inlet at the upper part of the conveyor belt, arranging a crusher in the soil feeding inlet, arranging a high-temperature fan at one side of the conveyor belt close to the soil feeding inlet, and arranging a humidity detection device at the other side of the conveyor belt;
step S3, a central control module arranged in the automatic dumping system is used for judging the real-time humidity of the surface of the conveyor belt detected by the humidity detection device, the central control module compares the real-time humidity with a standard humidity range arranged in the central control module and adjusts the initial air supply temperature of the high-temperature fan, when the real-time humidity is lower than the standard humidity range, the central control module compares the real-time humidity with the minimum dehumidification humidity arranged in the central control module to determine whether to turn off the high-temperature fan, and when the central control module judges that the high-temperature fan is not turned off, the central control module adjusts the air supply speed of the high-temperature fan according to the real-time humidity and the minimum dehumidification humidity;
step S4, when the central control module judges that the real-time humidity on the surface of the conveyor belt is higher than the standard humidity, the central control module compares the real-time humidity with the maximum lifting humidity set inside the conveyor belt, when the real-time humidity does not exceed the maximum lifting humidity, the central control module adjusts the initial driving rotating speed of the driving motor according to the real-time humidity on the surface of the conveyor belt and the standard humidity in the standard humidity range, when the real-time humidity exceeds the maximum lifting humidity, the central control module controls the driving motor to stop driving, and dehumidifies the residue soil in the automatic soil discharging system through the high-temperature fan, and when the real-time humidity detected by the humidity detection device is smaller than or equal to the maximum lifting humidity, the central control module controls the driving motor to start driving to lift the residue soil.
The automatic soil discharging system is arranged when the foundation pit discharges soil, the lifting rotary rod with continuous blades is arranged in the automatic soil discharging system to rotate to drive the muck to lift, the continuous soil discharging of the deep foundation pit is realized, the central control module is arranged in the automatic soil discharging system, the real-time humidity during the soil discharging is judged through the central control module, high-temperature air supply is carried out in the automatic soil discharging system through a high-temperature fan to dehumidify the muck, a certain friction force exists between the muck needing to be lifted by adopting the lifting rotary rod, so that the humidity of the muck environment is controlled, the soil lifting efficiency is ensured, the driving rotating speed of the driving motor is adjusted when the real-time humidity is higher, the blockage of a muck pipe group caused by the over-strong caking property of the muck is avoided, the motor loss is avoided, the automatic soil discharging system is arranged in the soil discharging process of the deep foundation pit, and the real-time humidity is judged, the continuous soil discharging operation is realized, and the soil discharging efficiency of the deep foundation pit is improved.
Specifically, a standard humidity Hb and a standard humidity difference delta Hb are arranged in the central control module, the conveyor belt conveys the muck crushed by the crusher to the soil discharging box, the humidity detection device detects real-time humidity Hs on the surface of the muck part after the conveyor belt finishes conveying, the central control module calculates a real-time humidity difference delta Hs and delta Hs-Hs | according to the real-time humidity Hs and the standard humidity Hb, and the central control module compares the real-time humidity difference delta Hs with the standard humidity difference delta Hb,
when the delta Hs is less than or equal to the delta Hb, the central control module judges that the real-time humidity difference on the surface of the conveyor belt does not exceed the standard humidity difference, and the central control module does not adjust the air supply temperature of the high-temperature fan;
when the delta Hs is larger than the delta Hb, the central control module judges that the real-time humidity difference on the surface of the conveyor belt exceeds the standard humidity difference, compares the real-time humidity with the standard humidity, and adjusts the air supply temperature of the high-temperature fan according to the comparison result.
Through set up standard humidity and standard humidity difference in well accuse module, constitute the standard temperature scope, and detect the real-time humidity of the surface department of the just output dregs of conveyer belt through humidity detection device, because set up humidity detection device in the conveyer belt department of the far side with high temperature fan, consequently the humidity detection influence here is lower, calculate real-time humidity difference through well accuse module simultaneously, compare real-time humidity difference and standard humidity difference, whether in standard temperature scope with the real-time humidity of confirming the detection, and adjust high temperature fan's air supply temperature according to the judged result, through the inside dregs humidity of accurate control automatic soil discharging system, improve the soil discharging efficiency of deep basal pit.
Specifically, the central control module is internally provided with the initial air supply temperature Tc of the high-temperature fan, when the central control module judges that the real-time humidity difference on the surface of the conveyor belt exceeds the standard humidity difference, the central control module compares the real-time humidity Hs with the standard humidity Hb,
when Hs is less than Hb, the central control module judges that the real-time humidity at the surface of the conveyor belt is lower than the standard humidity, and the central control module adjusts the air supply temperature of the high-temperature fan to be Tc ', Tc' = Tc-Tc x [ (Hb-Hs)/Hb ];
when Hs is larger than Hb, the central control module judges that the real-time humidity at the surface of the conveyor belt is higher than the standard humidity, and the central control module adjusts the air supply temperature of the high-temperature fan to Tc ', Tc' = Tc + Tc x [ (Hs-Hb)/Hs ].
When the central control module judges that the real-time humidity difference exceeds the standard humidity difference, the central control module compares the real-time humidity with the standard humidity, the specific soil discharging humidity state is determined, the comparison result of the real-time humidity and the standard humidity is obtained, the air supply temperature of the high-temperature fan is adjusted, when the real-time humidity is smaller, the air supply temperature of the high-temperature fan is reduced, raised dust caused by over-drying of the muck is avoided, the soil discharging environment is influenced, when the real-time humidity is larger, the air supply temperature of the high-temperature fan is increased, the muck is rapidly dehumidified, the bonding of the muck to the inner wall of the soil discharging pipe set is avoided, and the soil discharging efficiency of the foundation pit is further guaranteed.
Specifically, the central control module is internally provided with the lowest dehumidification humidity Hz, wherein Hz is less than Hb, when the central control module judges that the real-time humidity at the surface of the conveyor belt is lower than the standard humidity, the central control module compares the real-time humidity Hs at the surface of the conveyor belt with the lowest dehumidification humidity Hz,
when Hs is less than or equal to Hz, the central control module judges that the real-time humidity at the surface of the conveyor belt reaches the lowest dehumidification humidity, and the central control module controls the high-temperature fan to be closed to stop dehumidifying the residue soil on the conveyor belt;
when Hs > Hz, the central control module judges that the real-time humidity on the surface of the conveyor belt does not reach the lowest dehumidification humidity, the central control module does not close the high-temperature fan, and the central control module adjusts the air supply speed of the high-temperature fan according to the real-time humidity Hs and the lowest dehumidification humidity Hz on the surface of the conveyor belt.
Through set up minimum dehumidification humidity in well accuse module, compare real-time humidity and minimum dehumidification humidity to confirm to opening of high temperature fan and stop control, when the real-time humidity of conveyer belt surface department has reached minimum dehumidification humidity, the real-time humidity that represents the dregs is lower, stops the air supply through well accuse module control high temperature fan, avoids appearing the dregs raise dust, influences the operation environment around the soil discharging system.
Specifically, an initial air supply speed Vc of the high-temperature fan is set in the central control module, and when the central control module determines that the real-time humidity on the surface of the conveyor belt does not reach the minimum dehumidification humidity and adjusts the air supply temperature of the high-temperature fan to Tc ', the central control module adjusts the air supply speed of the high-temperature fan to Vc ', Vc ' = Vc × [ (Hs-Hz)/Hs ].
The real-time humidity on the surface of the conveying belt is lower, but the standard of closing the high-temperature fan is not reached, the air supply speed of the high-temperature fan is correspondingly adjusted according to the real-time humidity, when the real-time humidity is relatively higher, the air supply speed of the high-temperature fan is increased in an adaptive mode, the muck in the automatic dumping system is dried quickly, the dumping efficiency of the muck is improved, when the real-time humidity is relatively lower, the air supply speed of the high-temperature fan is reduced, the dust flying of the muck is avoided, and the environment stability of dumping operation is guaranteed.
Specifically, the central control module is internally provided with the maximum air supply temperature Ta of the high-temperature fan, when the central control module judges that the real-time humidity on the surface of the conveyor belt is higher than the standard humidity, the central control module adjusts the air supply temperature of the high-temperature fan to Tc ', and compares the air supply temperature Tc' with the maximum air supply temperature Ta,
when Tc' is less than or equal to Ta, the central control module judges that the adjusted air supply temperature of the high-temperature fan does not exceed the maximum air supply temperature, and the central control module does not adjust the high-temperature fan;
when Tc 'is more than Ta, the central control module judges that the adjusted air supply temperature of the high-temperature fan exceeds the maximum air supply temperature, the central control module adjusts the air supply temperature of the high-temperature fan to Tc', Tc '= Ta, the central control module adjusts the air supply speed of the high-temperature fan to Vc', Vc '= Vc + Vc x [ (Tc' -Ta)/Ta ], and the central control module finishes the adjustment of the high-temperature fan.
Through the biggest air supply temperature who sets up the high temperature fan in well accuse module, control the condition that dregs humidity is too big, when the air supply temperature of the high temperature fan of setting for surpassed the biggest air supply temperature, with the air supply temperature adjustment of high temperature fan for the biggest air supply temperature to supply air temperature through the air supply speed that improves the high temperature fan, guarantee dregs express delivery is dry, improves dregs discharge efficiency.
Specifically, the maximum lifting humidity Ha is arranged in the central control module, the initial driving rotating speed We of the driving motor is also arranged in the central control module, when the central control module judges that the real-time humidity at the surface of the conveyor belt is higher than the standard humidity, the central control module compares the real-time humidity Hs with the maximum lifting humidity Ha,
when Hs is not more than Ha, the central control module judges that the real-time humidity on the surface of the conveyor belt does not exceed the maximum lifting humidity, and the central control module adjusts the driving rotating speed of the driving motor to We ', We' = We x (Hb/Hs);
when Hs > Ha, the central control module judges that the real-time humidity of conveyer belt surface department is higher than the biggest promotion humidity, and the central control module will control driving motor stops the drive, by the high temperature fan dehumidifies the dregs in the automatic dumping system, until when the real-time humidity Hs 'that humidity detection device detected reached Hs' is less than or equal to Ha, the central control module control driving motor starts the drive.
Through set up the biggest promotion humidity in well accuse module, utilize well accuse module to judge real-time humidity according to the biggest promotion humidity, adjust with the driving speed to driving motor, when real-time humidity is great relatively, reduce driving motor's driving speed, avoid crossing glutinous dregs to concentrate and get into the pipe set of dumping, block up the pipe set of dumping, lead to unable normal operation of dumping, when real-time humidity is higher than the biggest promotion humidity, control driving motor stop driving, avoid driving motor scaling loss, guarantee automatic dumping system's security.
Specifically, in step S1, the pipe bundle includes an upper pipe, a lower pipe and a plurality of connecting pipes, the connecting pipes can be connected to each other, the lifting screw is formed by connecting a plurality of connectable lifting screws, and the number of the connecting pipes is determined according to the height of the sidewall of the deep foundation pit when the pipe bundle is fixed.
Through setting up the pipe group of dumping to seal the section structure, the foundation ditch operation of the adaptation different degree of depth that can be nimble through adopting the connection of respectively connecting the dumping pipe, can enough maintain and connect the lifting efficiency of promotion bull stick to the dregs, can ensure automatic dumping system's suitability again, the dumping operation of guarantee deep basal pit pipe overall process excavation.
Specifically, a closed box is further provided in step S2, an upper portion of the closed box is connected to the soil feeding inlet, a lower portion of the closed box is connected to the soil discharging box, and the conveyor belt, the high temperature fan, and the humidity detection device are all disposed inside the closed box.
Through setting up the seal box, load conveyer belt and high temperature fan, further reduce the raise dust of dregs dehumidification, set up the rubbing crusher through throwing the soil entry in step S2, it is fixed to smash the bulky in the dregs, avoids fixed blocking the pipe group of dumping, has ensured the normal clear of dumping operation.
Specifically, in step S1, if the side wall of the deep foundation pit is not provided with the support structure, the waste pipe set is fixed by using the screw anchor without using the expansion nail.
The utility model discloses a deep basal pit, including the deep basal pit, the lateral wall of deep basal pit is equipped with the anchor bolt, the anchor bolt is equipped with the soil discharging nest of tubes, the soil discharging nest of tubes passes through the expansion nail to be fixed on the supporting construction of the lateral wall of deep basal pit soil discharging position, because it is great to rock at the soil discharging in-process soil discharging nest of tubes, if directly fix the soil discharging nest of tubes on the lateral wall of deep basal pit's no strut department can have the lateral wall risk of collapsing, consequently, utilize the stock to fix, can reach the purpose of fixed soil discharging nest of tubes, can stabilize deep basal pit lateral wall atress again, if fix the soil discharging nest of tubes on supporting construction, the holistic stability of automatic soil discharging system has been ensured.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can be within the protection scope of the invention.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An automatic soil discharging construction process for a deep foundation pit is characterized by comprising the following steps of,
step S1, determining the dumping position of the deep foundation pit, installing an automatic dumping system at the side wall of the dumping position of the deep foundation pit, fixing a dumping pipe group in the automatic dumping system on a supporting structure at the side wall of the dumping position of the deep foundation pit through an expansion nail, arranging a driving motor at the upper end of the dumping pipe group, connecting the driving motor with a lifting rotary rod arranged in the dumping pipe group, and driving the lifting rotary rod to rotate through the driving motor;
step S2, arranging a soil discharging box at the lower end of the soil discharging pipe group, connecting the lifting rotary rod with the bottom of the soil discharging box, arranging a conveyor belt at an opening at the upper part of the soil discharging box, arranging a soil feeding inlet at the upper part of the conveyor belt, arranging a crusher in the soil feeding inlet, arranging a high-temperature fan at one side of the conveyor belt close to the soil feeding inlet, and arranging a humidity detection device at the other side of the conveyor belt;
step S3, a central control module arranged in the automatic dumping system is used for judging the real-time humidity of the surface of the conveyor belt detected by the humidity detection device, the central control module compares the real-time humidity with a standard humidity range arranged in the central control module and adjusts the initial air supply temperature of the high-temperature fan, when the real-time humidity is lower than the standard humidity range, the central control module compares the real-time humidity with the minimum dehumidification humidity arranged in the central control module to determine whether to turn off the high-temperature fan, and when the central control module judges that the high-temperature fan is not turned off, the central control module adjusts the air supply speed of the high-temperature fan according to the real-time humidity and the minimum dehumidification humidity;
step S4, when the central control module judges that the real-time humidity on the surface of the conveyor belt is higher than the standard humidity, the central control module compares the real-time humidity with the maximum lifting humidity set inside the conveyor belt, when the real-time humidity does not exceed the maximum lifting humidity, the central control module adjusts the initial driving rotating speed of the driving motor according to the real-time humidity on the surface of the conveyor belt and the standard humidity in the standard humidity range, when the real-time humidity exceeds the maximum lifting humidity, the central control module controls the driving motor to stop driving, and dehumidifies the residue soil in the automatic soil discharging system through the high-temperature fan, and when the real-time humidity detected by the humidity detection device is smaller than or equal to the maximum lifting humidity, the central control module controls the driving motor to start driving to lift the residue soil.
2. The automatic soil discharging construction process for the deep foundation pit as claimed in claim 1, wherein a standard humidity Hb and a standard humidity difference Δ Hb are arranged in the central control module, the conveyor belt conveys the muck crushed by the crusher into the soil discharging box, the humidity detection device detects a real-time humidity Hs on the surface of the muck part conveyed by the conveyor belt, the central control module calculates a real-time humidity difference Δ Hs according to the real-time humidity Hs and the standard humidity Hb, the Δ Hs = | Hb-Hs |, and the central control module compares the real-time humidity difference Δ Hs with the standard humidity difference Δ Hb,
when the delta Hs is less than or equal to the delta Hb, the central control module judges that the real-time humidity difference on the surface of the conveyor belt does not exceed the standard humidity difference, and the central control module does not adjust the air supply temperature of the high-temperature fan;
when the delta Hs is larger than the delta Hb, the central control module judges that the real-time humidity difference on the surface of the conveyor belt exceeds the standard humidity difference, compares the real-time humidity with the standard humidity, and adjusts the air supply temperature of the high-temperature fan according to the comparison result.
3. The automatic soil discharging construction process for the deep foundation pit as claimed in claim 2, wherein the central control module is internally provided with an initial air supply temperature Tc of the high temperature fan, when the central control module determines that the real-time humidity difference at the surface of the conveyor belt exceeds the standard humidity difference, the central control module compares the real-time humidity Hs with the standard humidity Hb,
when Hs is less than Hb, the central control module judges that the real-time humidity at the surface of the conveyor belt is lower than the standard humidity, and the central control module adjusts the air supply temperature of the high-temperature fan to be Tc ', Tc' = Tc-Tc x [ (Hb-Hs)/Hb ];
when Hs is larger than Hb, the central control module judges that the real-time humidity at the surface of the conveyor belt is higher than the standard humidity, and the central control module adjusts the air supply temperature of the high-temperature fan to Tc ', Tc' = Tc + Tc x [ (Hs-Hb)/Hs ].
4. The automatic soil discharging construction process for the deep foundation pit according to claim 3, wherein the central control module is provided with a lowest dehumidification humidity Hz, wherein Hz < Hb, and when the central control module determines that the real-time humidity at the surface of the conveyor belt is lower than the standard humidity, the central control module compares the real-time humidity Hs at the surface of the conveyor belt with the lowest dehumidification humidity Hz,
when Hs is less than or equal to Hz, the central control module judges that the real-time humidity at the surface of the conveyor belt reaches the lowest dehumidification humidity, and the central control module controls the high-temperature fan to be closed to stop dehumidifying the residue soil on the conveyor belt;
when Hs > Hz, the central control module judges that the real-time humidity on the surface of the conveying belt does not reach the lowest dehumidification humidity, the central control module does not close the high-temperature fan, and the central control module adjusts the air supply speed of the high-temperature fan according to the real-time humidity Hs and the lowest dehumidification humidity Hz on the surface of the conveying belt.
5. The automatic soil discharging construction process for the deep foundation pit according to claim 4, wherein an initial air supply speed Vc of the high temperature fan is set in the central control module, and when the central control module determines that the real-time humidity at the surface of the conveyor belt does not reach the minimum dehumidification humidity and adjusts the air supply temperature of the high temperature fan to Tc ', the central control module adjusts the air supply speed of the high temperature fan to Vc ', Vc ' = Vc x [ (Hs-Hz)/Hs ].
6. The automatic soil discharging construction process for the deep foundation pit according to claim 5, wherein the central control module is internally provided with a maximum air supply temperature Ta of the high temperature fan, when the central control module determines that the real-time humidity at the surface of the conveyor belt is higher than the standard humidity, the central control module adjusts the air supply temperature of the high temperature fan to Tc ', compares the air supply temperature Tc' with the maximum air supply temperature Ta,
when Tc' is less than or equal to Ta, the central control module judges that the adjusted air supply temperature of the high-temperature fan does not exceed the maximum air supply temperature, and the central control module does not adjust the high-temperature fan;
when Tc 'is more than Ta, the central control module judges that the adjusted air supply temperature of the high-temperature fan exceeds the maximum air supply temperature, the central control module adjusts the air supply temperature of the high-temperature fan to Tc', Tc '= Ta, the central control module adjusts the air supply speed of the high-temperature fan to Vc', Vc '= Vc + Vc x [ (Tc' -Ta)/Ta ], and the central control module finishes the adjustment of the high-temperature fan.
7. The automatic soil discharging construction process for deep foundation pits according to claim 3, wherein a maximum lifting humidity Ha is set in the central control module, an initial driving rotation speed We of the driving motor is also set in the central control module, when the central control module determines that the real-time humidity at the surface of the conveyor belt is higher than the standard humidity, the central control module compares the real-time humidity Hs with the maximum lifting humidity Ha,
when Hs is not more than Ha, the central control module judges that the real-time humidity on the surface of the conveyor belt does not exceed the maximum lifting humidity, and the central control module adjusts the driving rotating speed of the driving motor to We ', We' = We x (Hb/Hs);
when Hs > Ha, the central control module judges that the real-time humidity of conveyer belt surface department is higher than the biggest promotion humidity, and the central control module will control driving motor stops the drive, by the high temperature fan dehumidifies the dregs in the automatic dumping system, until when the real-time humidity Hs 'that humidity detection device detected reached Hs' is less than or equal to Ha, the central control module control driving motor starts the drive.
8. The automatic soil discharging construction process for the deep foundation pit according to claim 1, wherein in the step S1, the soil discharging pipe set comprises an upper soil discharging pipe, a lower soil discharging pipe and a plurality of connecting soil discharging pipes, each of the connecting soil discharging pipes can be connected with each other, the lifting rotary rods are formed by connecting a plurality of connectable lifting rotary rods, and the number of the connecting soil discharging pipes is determined according to the height of the side wall of the deep foundation pit when the soil discharging pipe set is fixed.
9. The automatic soil discharging construction process for the deep foundation pit according to claim 1, wherein a closed box is further arranged in the step S2, the upper part of the closed box is connected with the soil feeding inlet, the lower part of the closed box is connected with the soil discharging box, and the conveyor belt, the high temperature fan and the humidity detection device are all arranged inside the closed box.
10. The automatic soil discharging construction process for the deep foundation pit according to claim 1, wherein in the step S1, if the side wall of the deep foundation pit is not provided with a supporting structure, the soil discharging pipe set is fixed only by using a threaded anchor rod without using the expansion nail.
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